- Turn OFF the main power switch and unplug the power cord before replacing the PSU.
 - Do not touch the areas outlined in red in the following diagrams when replacing the PSU. Residual charge on the board may cause electric shock.
 
100V  | 200V  | |
|---|---|---|
IM C3500/C3000/C2500/C2000 
  | ||
IM C6000/C5500/C4500 
  | 
- Remove the Rear lower cover. (Rear Lower Cover)
 - Remove the PSU (DC Power) (PCB8) [A].